Loading machine



Agn-ii 1931. M. STRQM ET AL.

LOADING MACHINE Filed June ll, 1930 2 Shaets-Sheet 2 Jif' 11 A nu; V

Patented Apr. 7, 1931 UNITED STATES PATENT OFFICE LOADING MACHINE Application 1e 1- June 11, 193Q. Serial No. 460,438.

This invention relates to loading machines generally and more particularly to a device of this character for use in loading manure but it is to be understood that the same may be utilized for any purpose and in any manner for which same is found adapted and desirable.

The primary object of the invention is to provide, in a manner, as hereinafter set forth,

a loading machine of the aforementioned which is operatively connected to the power take-oli' pulleyof the tractor for actuation thereby, the invention still further embodying means for manually connecting the elevating means to the power take-oft'.

A further object of the invention is to provide a loading machine including a rfork which is pivotally mounted for swinging movement and arranged t-o s wing by gravity to remove the load therefrom and to return by gravity to its inoperative position, said fork being releasably retained in horizontal position through the medium of a spring controlled manually operable keeper.

Other objects of the invention are to provide a loading machine which will be comparatively simple in construction, strong, durable, efficient in its use and which may be manufactured at a low cost.

All of the foregoing and still further objects and advantages ofthe invention may become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of referencel designate corresponding parts throughout the several views, and wherein:

Figure 1 is a view in side elevation of a loading machine constructed in accordance with this invention mounted in operative position on a tractor,

Figure 2 is a view in top plan of the loading fork and the supporting means therefor removed from the tractor,

Figure 3 is a detail view in front elevation of the elevating mechanism detached from the tractor,

Figure'4 is a longitudinal sectional view taken substantially on the line 4-4 of Figure 2,

Figure 5 is a detail view in elevation of one of the clutch devices constituting onL of the elements of the elevating mechanism.

Figure 6 is a detail view in elevation of the other clutch member constituting one of the elements of the elevating mechanism for coaction with the member illustrated in Figure 5.

Referring to the `drawings in detail, it will be seen that the reference numeral 1 designates` a conventional tractor 'of the Farmall type and including the frame .1

mounted on the front wheels 2 and the rear wheels 3. Associated with the inner sides of the wheels 3 are the gear casings 4, said rear wheels being operatively connected in the usual manner to the engine 5. Thel tractor 1 further includesa power take off pulley 6 on one side thereof which is operatively connected to the engine 5 for actuation thereby.

Metallic brackets 7 extend forwardly from the gear casing 4 and are supported 1n substantially horizontal position by the depending braces 8. Forwardly extending, spaced, parallel side bars 9 are hingedly mounted for vertical swinging movement on the brackets 6 as at l0, said bars 9 projecting forwardly beyond the front wheels 2 of the tractor and terminating in downturned free end portions between which is mounted for swinging movement a fork designated generally by the reference numeral 11 and comprising the transversely extending rockable plate 12 upon which are mounted the forwardly projecting spaced, parallel tines I13 having the tapered free end portions 14. The fork 11 further includes an upwardly and rearwardly inclined back portion 15`\ The fork l1 still further includes the rearwardly conver ing members 16 which constitutes means or supporting the upstanding toothed arm v17 whichis longitudinally curved.

A cross beam 18 extends between the bars 9 at a point in rearwardly spaced relation to the fork 11 and has slidably mounted therein a keeper or bolt 19 which is adapted for engagement with the segment or arm 17 in a manner to retain the fork 11 against movement. The bolt 19 is yieldingly urged into engagement with the toothed arm 17 by the coil spring 2() which, as best seen in Figure 4 of the drawings encircles this bolt and has one end impinged on a collar 21 fixed on the bolt and its opposite ends impinged against the bracket 22 through which said bolt slidably extends and which is mounted on the cross beam.

The bolt 19 is operatively connected to the transversely extending lever 23 which is pivotally connected for swinging movement on one of the bars 9 and to the opposite end portion of which is attached a suitable operating cable or rod 24 which extends rearwardly to a point within convenient reach of an operator sitting on the seat 25 of the tractor.

Forwardly converging guide members 26 are mounted on the forward side of the cross beam 18 for engagement with the opposite side of the upstanding toothed arm 17.

The elevating mechanism for the fork is designated generally by the reference numeral 27 and, as best seen in Figure 3 of the drawings, comprises a pair of standards 28 which are secured on the forward end portion of the frames of the tractor and have secured thereon adjacent their upper ends the bearings 29 in which is journalled the shaft 30. Fixed in spaced relation on the shaft 30 is a pair of drums 31 upo'n which are windable the cables 32 which have one end connected to the cross beam 18 through the medium of the eye bolts 33 which are anchored in said cross beam. Also fixed on the shaft 30 is a gear 34. Mounted on the standards 28 in spaced relation below the bearings 29 is another pair of bearings 35 in which is rotatably mounted the shaft 36 having one end projecting beyond one of the standards 28 and having fixed thereon the pulley 37.

An endless drive belt 38 is trained over the pulley 37 and the power take-off pulley 6 of the tractor. A clutch member 39 is loosely mounted on the shaft 36 and has fixed thereon a hinged gear 40 which is comfortably in mesh with the comparatively large gear 34 on the shaft 30. -A clutch member 41 is s )lined on the shaft 36 and engageable with the clutch member 39 in a manner to operatively connect same to the shaft.

The clutch member 41 is manually operable through the medium of the lever 42 which is pivotally mounted on the bracket 43 and which is operatively connected to said clutch member 41 by the rod 44.

In operation, swingable bars 9 with the fork 11 thereon may be permitted to gravitate to lowered position by disengaging the clutch members 39 and 41. As will be apparent, when it is desired to elevate the fork, the clutch members 39 and 41 are engaged and when the pulley 6 is rotating, the cables 32 will be wound on the drums 31. Then it is desired to release the load, the bolt 19 is moved rearwardly against the tension of the coil spring 2O through the medium of the lever 23 and the cable 24 in a manner to disengage said bolt from the toothed arm 17 and the fork will be swung to the position as indicated in broken lines in Figure 4 of the drawings by gravity, it being readily apparent that the load thereon is disposed forwardly of the pivot point of said fork.

When the load is released, the fork 11 will then return by gravity to its normal position, the portions thereof rearwardly of the pivot point being heavier than the portion forwardly of said pivot point. When the fork returns to normal position, the bolt 19 engages with the toothed arm 17 and said fork is then ready to be lowered for reloading.

It is believed that the many advantages of a loading machine constructed in accordance with this invention will be readily understood, and although the preferred embodiment of the invention is as illustrated and described, it is to be understood that de ends for swinging movement in a verticalplane on the brackets and projecting longitudinally and forwardly from the tractor and terminating in downturned free end portions, a transverse plate mounted for rocking movement between the free end portion of the bars, a plurality of tines rigidly mounted on the plate and extending forwardly therefrom in spaced parallel relation to each other, an upwardly and rearwardly inclined member mounted on the plate, a pair of rearwardly converging arms mounted on the plate for swinging movement therewith, an upstanding, longitudinally curved toothed arm on the converged ends of the second named arms, the parts at the rear of the pivoted plate being heavier than the part of the tines projecting in front of the plate whereby the parts will normally occupy a position with the front ends of the tines in` raised position, a cross beam extending between the first named arms in rearwardly spaced relation to the rockable plate, a bolt slidable through the4 cross beam and engageuhle with 'the toothed arm n. a. mnner to trimm the plate against rocking movement, a bracket mounted on the Croselream through which the bolt is slda'ble, a Collin' fixed on the bolt Within the bracket, o. oeil spring encircling' thel bolt and mpngng the collar und bracket in a manner to yelflnkzly urge said bolt into engao'ement with the toothed arm, :t lever pvotallly mounted for swinging movement on one of the first named bars and operatively connected to the bolt, an operating cable connected to the lever, and means for operatively connecting the lrst named hai' and pulley.

In testimony whereof We ax our signatures.

MANUEL STROM. OTTO JAGER 

